package com.atguigu.yygh.hosp.service.impl;

import com.alibaba.fastjson.JSONObject;
import com.atguigu.yygh.vo.hosp.DepartmentQueryVo;
import com.atguigu.yygh.vo.hosp.DepartmentVo;
import com.atguigu.yygh.hosp.repository.DepartmentRepository;
import com.atguigu.yygh.hosp.service.DepartmentService;
import com.atguigu.yygh.model.hosp.Department;

import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.*;
import org.springframework.stereotype.Service;

import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

@Service
public class DepartmentServiceImpl implements DepartmentService {
    @Autowired
    public DepartmentRepository departmentRepository;

    /**
     * 删除科室接口
     *
     * @param hoscode
     * @param depcode
     **/
    @Override
    public void remove(String hoscode, String depcode) {
        //根据医院编号和科室编号进行查询
        Department department = departmentRepository.getDepartmentByHoscodeAndDepcode(hoscode, depcode);
        if(department != null){
            //调用方法删除
            departmentRepository.deleteById(department.getId());
        }

    }

    /**
     * 查询科室
     *
     * @param page
     * @param limit
     * @param departmentQueryVo
     **/
    @Override
    public Page<Department> findPageDepartment(int page, int limit, DepartmentQueryVo departmentQueryVo) {
        //创建Pageable对象，设置当前页和每页记录对象
        Pageable pageable = PageRequest.of(page-1,limit);
        //创建Example对象
        Department department = new Department();
        BeanUtils.copyProperties(departmentQueryVo,department);
        department.setIsDeleted(0);

        ExampleMatcher matcher = ExampleMatcher.matching()
                                .withStringMatcher(ExampleMatcher.StringMatcher.CONTAINING)
                                .withIgnoreCase(true);
        Example<Department> example = Example.of(department,matcher);
        Page<Department> all = departmentRepository.findAll(example,pageable);
        return all;
    }

    @Override
    public void save(Map<String, Object> paramMap) {
        //paramMap对象转化成department对象
        String jsonString = JSONObject.toJSONString(paramMap);
        Department department = JSONObject.parseObject(jsonString,Department.class);

        //根据医院编号和科室编号进行查询
        Department departmentExist =  departmentRepository.
            getDepartmentByHoscodeAndDepcode(department.getHoscode(),department.getDepcode());

        //判断
        if(departmentExist!=null){
            departmentExist.setUpdateTime(new Date());
            departmentExist.setIsDeleted(0);
            departmentRepository.save(departmentExist);
        }else {
            department.setCreateTime(new Date());
            department.setUpdateTime(new Date());
            department.setIsDeleted(0);
            departmentRepository.save(department);
        }
    }

    /**
     * 根据医院编号查询
     *
     * @param hoscode
     **/
    @Override
    public List findDeptTree(String hoscode) {
        //创建list集合用于数据封装
        List<DepartmentVo> result = new ArrayList<>();
        //根据医院编号，查询医院所有科室信息
        Department departmentQuerry = new Department();
        departmentQuerry.setHoscode(hoscode);
        //在mongodb中查询
        Example example = Example.of(departmentQuerry);
        List<Department> departmentList = departmentRepository.findAll(example);

        //根据大科室编号 bigcode 做分组，获得每个大科室下级子科室

        Map<String, List<Department>> departmentMap =
                departmentList.stream().collect(Collectors.groupingBy(Department::getBigcode));
        //遍历map集合
        for(Map.Entry<String,List<Department>> entry : departmentMap.entrySet() ){
            //大科室的编号
            String bigcode = entry.getKey();
            //大科室编号对应的数据
            List<Department> departmentList1 = entry.getValue();

            //封装大科室
            DepartmentVo departmentVo = new DepartmentVo();
            departmentVo.setDepcode(bigcode);
            departmentVo.setDepname(departmentList1.get(0).getBigname());

            //封装小科室
            List<DepartmentVo> children = new ArrayList<>();
            for(Department department : departmentList){
                DepartmentVo departmentVo2 = new DepartmentVo();
                departmentVo2.setDepcode(department.getDepcode());
                departmentVo2.setDepname(department.getDepname());
                //封装到list集合
                children.add(departmentVo2);
            }

            //把小科室集合封装到大科室集合里
            departmentVo.setChildren(children);
            //放入最终封装result
            result.add(departmentVo);
        }
        return result;
    }

    /**
     * 根据科室编号 和医院编号 查询科室名称
     *
     * @param hoscode
     * @param depcode
     **/
    @Override
    public String getDepName(String hoscode, String depcode) {
        Department department = departmentRepository.getDepartmentByHoscodeAndDepcode(hoscode,depcode);
        if(department != null){
            return department.getDepname();
        }
        return null;
    }
}
